Cleared Traditional

K941127 - QCT-BONE MINERAL ANALYSIS SOFTWARE (FDA 510(k) Clearance)

Class II Radiology device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K941127 · Image Analysis, Inc. · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
May 1995
Decision
428d
Days
Class 2
Risk

K941127 is an FDA 510(k) clearance for the QCT-BONE MINERAL ANALYSIS SOFTWARE. Classified as Densitometer, Bone (product code KGI), Class II - Special Controls.

Submitted by Image Analysis, Inc. (Columbia, US). The FDA issued a Cleared decision on May 11, 1995 after a review of 428 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1170 - the FDA radiology and imaging software oversight framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Radiology submissions.

View all Image Analysis, Inc. devices

Submission Details

510(k) Number K941127 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 09, 1994
Decision Date May 11, 1995
Days to Decision 428 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
321d slower than avg
Panel avg: 107d · This submission: 428d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KGI Densitometer, Bone
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1170
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Radiology devices follow this clearance model.